Instructions on how to obtain Data_8AB

1) execute a scf calculation by pw.x in QE code with in.scf
   $MPIRUN -np $NUM_CORE $PATH/pw.x < in.scf 

2) execute a non-scf calculation by pw.x in QE code with in.nscfb_0
   $MPIRUN -np $NUM_CORE $PATH/pw.x < in.nscfb_0

3) execute a pp calculation by bands.x in QE code with in.band
   $MPIRUN -np $NUM_CORE $PATH/bands.x < in.band

4) rename pwscf.band.gnu to pwscf.band.gnu_0

5) execute a non-scf calculation by pw.x in QE code with in.nscfb_1
   $MPIRUN -np $NUM_CORE $PATH/pw.x < in.nscfb_1

6) execute a pp calculation by bands.x in QE code with in.band
   $MPIRUN -np $NUM_CORE $PATH/bands.x < in.band

7) rename pwscf.band.gnu to pwscf.band.gnu_1
